請教各位GGJJ， |.asg  
我想用zemax的非序列模式仿真玻璃diffuser的透射及反射場。 WUEjWJA-MB  
我用的是thorlabs ground glass diffuser,技術參數(shù)如下： m+jW+  
Material: N-BK7 (Uncoated)Scratch-Dig: 80-50Clear Aperture: >90% DiameterPolished Side Surface Irregularity: <4λGaussian Intensity Profile120, 220, 600, or 1500 grit |sG@Ku7~4  
請問是否可以使用zemax的內建散射模型？如果可以，應該使用哪一種？謝謝��！

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Built-in scattering models 7v{X?86&  
Lambertian `W&:*  
BSDF = 1/p

• The scattered ray projection vector has equal probability anywhere on the projected plane    
• The scattered intensity varies like cos(q_s)    
• The scattered intensity is independent of the incident angle

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Gaussian ap 5D6y+  
BSDF(x) = A*exp[-|x|²/s²]

• The scattering distribution is symmetric in direction cosine space    
• s determines the width of the Gaussian distribution on the projected plane    
• Maximum value allowed for s is 5 (for s > 5, distribution is nearly Lambertian)

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ABg ZUkrJ'  
BSDF(x) = A/[B + |x|^g]

• Widely used to model scattering due to random isotropic surface roughness    
• Input values for A, B, and g are provided in an ASCII file (in the <data>\ABg_Data\ directory)    
• Input value limitations: A >= 0, B >= 1.0E-12 (unless g = 0, then B = 0 is allowed)

樓主， @,=E[c 8  
從diffusion power vs. angle 曲線看，朗伯散射模型是不合適的，考慮用高斯和ABg散射模型更現(xiàn)實。 KS9eV  
如需要具體模型參數(shù)，請告知。 #3+-vyZm  
祝成功！ 5O7x4bY  
MANG2004 Bo
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mang2004:樓主， L^7"I 4=(D  
從diffusion power vs. angle 曲線看，朗伯散射模型是不合適的，考慮用高斯和ABg散射模型更現(xiàn)實。 'f?=ks<  
如需要具體模型參數(shù)，請告知。 NDmTxW#g  
祝成功！ 4dd]